AKRON -- Star witness J. Kevin Kelley did not return to the stand Wednesday morning after falling ill during the Tuesday morning break in the trial.

Kelley, 42, has multiple ailments for which he takes 21 pills daily, including depression and insomnia. He had been testifying in the trial of Jimmy Dimora.

U.S. Distict Judge Sara Lioi told jurors only that prosecutors were moving on to another witness and that Kelley's testimony would continue at a later date.

The government then put FBI Special Agent Christine Oliver on the stand and questioned her about Executive Caterers at Landerhaven.

Executive Caterers of Landerhaven CEO Harlan Diamond is expected to take the stand later Wednesday morning.

Diamond pleaded guilty in April 2011 to working with former Cuyahoga County Commissioner Jimmy Dimora to defraud Dimora's political campaign fund.

Diamond, 77, of Bratenahl, could face six months in prison but his attorney Robert Glickman had him sign an 18-page plea agreement with prosecutors which could help Diamond avoid any prison time.

U.S. District Court Judge John Adams took Diamond's guilty plea but Diamond will not be sentenced until after Dimora's trial.

That agreement requires Diamond to testify for the prosecution, if necessary, against Dimora.

Dimora, 56, of Independence, has pleaded not guilty to all counts and maintains his innocence.

Diamond was charged March 7, 2011 but a spokesman told Channel 3 that he had been cooperating with authorities in the Cuyahoga County corruption probe before that date.

According to court records, Diamond agreed to bill Dimora's political campaign fund for charges Dimora incurred for his wife Lori's 50th birthday party at Executive Caterer's at Landerhaven in Mayfield Heights.

Court records reveal that Diamond added $3,641.86 to the bill for a Dimora Boosters Club brunch in October, 2006.

Dimora and Diamond later met again to discuss unpaid bills and it resulted in another $3,466.94 from the campaign fund being applied to the balance owed for Lori Dimora's birthday party.